1 /* Define POSIX options for Linux. 2 Copyright (C) 1996-2021 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public License as 7 published by the Free Software Foundation; either version 2.1 of the 8 License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; see the file COPYING.LIB. If 17 not, see <https://www.gnu.org/licenses/>. */ 18 19 #ifndef _BITS_POSIX_OPT_H 20 #define _BITS_POSIX_OPT_H 1 21 22 /* Job control is supported. */ 23 #define _POSIX_JOB_CONTROL 1 24 25 /* Processes have a saved set-user-ID and a saved set-group-ID. */ 26 #define _POSIX_SAVED_IDS 1 27 28 /* Priority scheduling is not supported with the correct semantics, 29 but GNU/Linux applications expect that the corresponding interfaces 30 are available, even though the semantics do not meet the POSIX 31 requirements. See glibc bug 14829. */ 32 #define _POSIX_PRIORITY_SCHEDULING 200809L 33 34 /* Synchronizing file data is supported. */ 35 #define _POSIX_SYNCHRONIZED_IO 200809L 36 37 /* The fsync function is present. */ 38 #define _POSIX_FSYNC 200809L 39 40 /* Mapping of files to memory is supported. */ 41 #define _POSIX_MAPPED_FILES 200809L 42 43 /* Locking of all memory is supported. */ 44 #define _POSIX_MEMLOCK 200809L 45 46 /* Locking of ranges of memory is supported. */ 47 #define _POSIX_MEMLOCK_RANGE 200809L 48 49 /* Setting of memory protections is supported. */ 50 #define _POSIX_MEMORY_PROTECTION 200809L 51 52 /* Some filesystems allow all users to change file ownership. */ 53 #define _POSIX_CHOWN_RESTRICTED 0 54 55 /* `c_cc' member of 'struct termios' structure can be disabled by 56 using the value _POSIX_VDISABLE. */ 57 #define _POSIX_VDISABLE '\0' 58 59 /* Filenames are not silently truncated. */ 60 #define _POSIX_NO_TRUNC 1 61 62 /* X/Open realtime support is available. */ 63 #define _XOPEN_REALTIME 1 64 65 /* X/Open thread realtime support is available. */ 66 #define _XOPEN_REALTIME_THREADS 1 67 68 /* XPG4.2 shared memory is supported. */ 69 #define _XOPEN_SHM 1 70 71 /* Tell we have POSIX threads. */ 72 #define _POSIX_THREADS 200809L 73 74 /* We have the reentrant functions described in POSIX. */ 75 #define _POSIX_REENTRANT_FUNCTIONS 1 76 #define _POSIX_THREAD_SAFE_FUNCTIONS 200809L 77 78 /* We provide priority scheduling for threads. */ 79 #define _POSIX_THREAD_PRIORITY_SCHEDULING 200809L 80 81 /* We support user-defined stack sizes. */ 82 #define _POSIX_THREAD_ATTR_STACKSIZE 200809L 83 84 /* We support user-defined stacks. */ 85 #define _POSIX_THREAD_ATTR_STACKADDR 200809L 86 87 /* We support priority inheritence. */ 88 #define _POSIX_THREAD_PRIO_INHERIT 200809L 89 90 /* We support priority protection, though only for non-robust 91 mutexes. */ 92 #define _POSIX_THREAD_PRIO_PROTECT 200809L 93 94 #ifdef __USE_XOPEN2K8 95 /* We support priority inheritence for robust mutexes. */ 96 # define _POSIX_THREAD_ROBUST_PRIO_INHERIT 200809L 97 98 /* We do not support priority protection for robust mutexes. */ 99 # define _POSIX_THREAD_ROBUST_PRIO_PROTECT -1 100 #endif 101 102 /* We support POSIX.1b semaphores. */ 103 #define _POSIX_SEMAPHORES 200809L 104 105 /* Real-time signals are supported. */ 106 #define _POSIX_REALTIME_SIGNALS 200809L 107 108 /* We support asynchronous I/O. */ 109 #define _POSIX_ASYNCHRONOUS_IO 200809L 110 #define _POSIX_ASYNC_IO 1 111 /* Alternative name for Unix98. */ 112 #define _LFS_ASYNCHRONOUS_IO 1 113 /* Support for prioritization is also available. */ 114 #define _POSIX_PRIORITIZED_IO 200809L 115 116 /* The LFS support in asynchronous I/O is also available. */ 117 #define _LFS64_ASYNCHRONOUS_IO 1 118 119 /* The rest of the LFS is also available. */ 120 #define _LFS_LARGEFILE 1 121 #define _LFS64_LARGEFILE 1 122 #define _LFS64_STDIO 1 123 124 /* POSIX shared memory objects are implemented. */ 125 #define _POSIX_SHARED_MEMORY_OBJECTS 200809L 126 127 /* CPU-time clocks support needs to be checked at runtime. */ 128 #define _POSIX_CPUTIME 0 129 130 /* Clock support in threads must be also checked at runtime. */ 131 #define _POSIX_THREAD_CPUTIME 0 132 133 /* GNU libc provides regular expression handling. */ 134 #define _POSIX_REGEXP 1 135 136 /* Reader/Writer locks are available. */ 137 #define _POSIX_READER_WRITER_LOCKS 200809L 138 139 /* We have a POSIX shell. */ 140 #define _POSIX_SHELL 1 141 142 /* We support the Timeouts option. */ 143 #define _POSIX_TIMEOUTS 200809L 144 145 /* We support spinlocks. */ 146 #define _POSIX_SPIN_LOCKS 200809L 147 148 /* The `spawn' function family is supported. */ 149 #define _POSIX_SPAWN 200809L 150 151 /* We have POSIX timers. */ 152 #define _POSIX_TIMERS 200809L 153 154 /* The barrier functions are available. */ 155 #define _POSIX_BARRIERS 200809L 156 157 /* POSIX message queues are available. */ 158 #define _POSIX_MESSAGE_PASSING 200809L 159 160 /* Thread process-shared synchronization is supported. */ 161 #define _POSIX_THREAD_PROCESS_SHARED 200809L 162 163 /* The monotonic clock might be available. */ 164 #define _POSIX_MONOTONIC_CLOCK 0 165 166 /* The clock selection interfaces are available. */ 167 #define _POSIX_CLOCK_SELECTION 200809L 168 169 /* Advisory information interfaces are available. */ 170 #define _POSIX_ADVISORY_INFO 200809L 171 172 /* IPv6 support is available. */ 173 #define _POSIX_IPV6 200809L 174 175 /* Raw socket support is available. */ 176 #define _POSIX_RAW_SOCKETS 200809L 177 178 /* We have at least one terminal. */ 179 #define _POSIX2_CHAR_TERM 200809L 180 181 /* Neither process nor thread sporadic server interfaces is available. */ 182 #define _POSIX_SPORADIC_SERVER -1 183 #define _POSIX_THREAD_SPORADIC_SERVER -1 184 185 /* trace.h is not available. */ 186 #define _POSIX_TRACE -1 187 #define _POSIX_TRACE_EVENT_FILTER -1 188 #define _POSIX_TRACE_INHERIT -1 189 #define _POSIX_TRACE_LOG -1 190 191 /* Typed memory objects are not available. */ 192 #define _POSIX_TYPED_MEMORY_OBJECTS -1 193 194 #endif /* bits/posix_opt.h */